Try the method, forget the app.
Wim Hofs method is credible and can be life-changing.
This app, however, contains little more than a repetition of the free material found on his website.
For such a high price tag, it should at least offer a discount on purchasing the Wim Hof training course.
Try his method and find out what it can do for you, but dont purchase this app. Its not at all worth the cost.
CityAir about
Wim Hof Method Breathing&Cold, v1.73.107.6